Seamless connectivity by a user device between a licensed and an unlicensed network is provided through capturing of MAC address information relating to one or more access points servicing the licensed andor the unlicensed networks. The central lumen is maintained in a circular shape without bulges diminishing the useful inter-diameter by using an outer jacket with an elliptical shape and uneven thickness to encase a pull wire. The electrode system can reduce or eliminate motion artifact from an electronic signal that can result in misdiagnosis, prolong procedural duration and inappropriate treatment of a patient.